SolarWinds Serv-U Type Confusion Remote Code Execution Vulnerability
(CVE-2025-40540)
Summary
A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.
This issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.
Affected Products
SolarWinds Serv-U 15.5
Fixed Software Release
Advisory Detail
Severity
9.1 Critical
Advisory ID
First Published
02/24/2026
Last Published
02/24/2026